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1. 发明授权

US4136757A Absorption muffler construction 失效
标题翻译：吸声消声器施工
公开(公告)号：US4136757A
公开(公告)日：1979-01-30
申请号：US856987
申请日：1977-12-02
申请人： Walter Bauerschmidt
发明人： Walter Bauerschmidt
IPC分类号： F01N1/12 , F01N1/10
CPC分类号： F01N1/125
摘要： An absorption muffler for flowing gases and particularly for exhaust gases from internal combustion engines comprises a housing which is of oblong shape and has spaced apart semicylindrical short side walls, with long side walls on each side which are synclinally drawn in the middle thereof. Parallel inlet and outlet pipes are connected into the front wall and extend substantially up to the rear wall, and they are located in substantially parallel relationship centered within the respective short side wall semicylindrical portions. An inlet channel is defined on the interior of the housing which extends in a helical curve around the inlet pipe, which in one embodiment has a single convolution and in another embodiment has a plurality of convolutions. This inlet channel connects to a similarly constructed outlet channel designed around the outlet pipe through an obliquely extending connecting channel. The inlet channel comprises either a single convolution or a plurality of convolutions. Both the inlet and the outlet pipes are enveloped with a spacing by a surrounding wall, which has an unperforated surrounding wall portion which overlies a perforated portion of the respective inlet or outlet. Sound damping material is provided along the length of the inlet and the outlet channels and the connecting channel, and fills the wall space between adjacent convolutions of the inlet and outlet channels and the space between either one of the convolutions and the wall of the chamber, and between the connecting channel and the wall of the housing.
摘要翻译：用于流动气体，特别是用于来自内燃机的废气的吸收消声器包括长方形的壳体，并且具有间隔开的半圆柱形短侧壁，每侧的长侧壁在其中间被平缓地拉伸。平行的入口管和出口管连接到前壁中并且基本上延伸到后壁，并且它们以相应的短侧壁半圆柱部分为中心的大致平行的关系定位。入口通道限定在壳体的内部，其以围绕入口管的螺旋形曲线延伸，在一个实施例中，入口通道具有单个卷积，并且在另一个实施例中具有多个卷积。该入口通道连接到通过倾斜延伸的连接通道围绕出口管设计的类似构造的出口通道。入口通道包括单个卷积或多个卷积。入口管和出口管都被包围的围壁围绕，该周围壁具有围绕相应入口或出口的穿孔部分的未穿孔的围壁部分。沿着入口和出口通道和连接通道的长度设置声阻尼材料，并且填充入口和出口通道的相邻卷积之间的壁空间以及两个卷积和室壁之间的空间，并且在连接通道和壳体的壁之间。

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